Fans will know that there is no love lost between Jem and Charlotte, but Jem has now insisted her decision to sleep with Gaz was not out of revenge.
One Twitter user had accused Jem of having sex with Gary to upset Charlotte, after Jem claimed her ex-boyfriend David Hawley had 'cheated on her' with the former Geordie Shore star.
Cast your minds back to January earlier this year, and Jem had accused Charlotte of 'stealing her boyfriend' after pictures emerged of Charlotte kissing a mystery man, thought to be Hawley, on a night out in Newcastle.
Jem had tweeted at the time: "[Charlotte] nicked my fella, but has always been pure nice to my face! I don't f*** about! I'm the nicest girl ever until I get pushed, then that's it. Sorry."
Charlotte didn't respond to Jem's tweet, but a rep for the 26-year-old suggested Jem's claim were not true. They told The Mirror: "Charlotte hasn't stolen anyone's boyfriend, David Hawley is just a friend from Newcastle she's known him for years."
However, Jem repeated the accusations on Twitter last night (16 August), prompting one user to tweet: "So because he cheated with 'Crosby' (tag her). You sh*gged gaz? You just lowered yourself to his level. Maybe lower? Shocking."
Jem replied: "That wasn't why I sh*gged Gaz stop making up sh*t."
Fans of Ex On The Beach saw Jem make a 'beeline' for Gaz on the show, after she confessed to fancying him. Jem said shortly after arriving to the beach: "Obviously, Gaz is looking unreal... ripped, shredded, the lot. I don't really want to be part of Gaz's checklist but he has got a charm and a girl has got needs."
Gary, who had picked up his on/off romance with Charlotte prior to filming back in April, explained that he was back on the show to "test" himself. He explained that he wanted to see whether he was ready to commit to Charlotte.
He said: "If I get feelings for somebody in that villa, I know that me and Charlotte are not meant to be. There's a lot of fit girls that are going to be here... this is going to be hard."
Reacting to Jem's advances, Gary admitted: "She's fit man. Sh*t."
Viewers then saw Gaz and Jem sleep together, after she invited him to join her in the penthouse. However, Gaz insisted there were no feelings involved so it didn't impact his decision over Charlotte.
"Technically I've done nothing wrong. At the end of the day I'm single. It was just sex," he claimed. "I don't like Jemma like that. The main test for me is if I don't fall for someone in this house I know I want to be with Charlotte."
However, his decision to sleep with Jem ultimately ended his relationship with Charlotte.
Charlotte said she would have '100 percent' committed to Gary if he had stayed faithful to her during filming, but she decided to call it quits after reports surfaced detailing Gaz and Jem's hook up back in May.
Fans later learnt that while Gaz had been filming, Charlotte had been hospitalised following an ectopic pregnancy. Gary has since stressed that he slept with Jem before he had found out about Charlotte's hospitalisation, and he claims she had told him to continue with filming as she was feeling ok.
Charlotte, meanwhile, has now said she doesn't see how she can forgive Gary and ruled out a reconciliation between the pair.
She didn't tune into last night's episode of Ex On The Beach, but Charlotte did appear to share her upset with fans over Gaz and Jem on Snapchat and Twitter.
Ex On The Beach continues Tuesday 23 August at 10pm on MTV.
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